Final answer:
The true cost of building the new assembly line after taking flotation costs into account is 7.55%.
Step-by-step explanation:
The true cost of building the new assembly line after taking flotation costs into account can be calculated by considering the cost of debt and equity. The target debt-equity ratio is 0.45, which means that for every $1 of equity, there will be $0.45 of debt.
Using this ratio, the cost of equity can be calculated as follows:
Equity Ratio = 1/(1 + Debt-equity ratio) = 1/(1 + 0.45) = 0.6897
Cost of Equity = Flotation cost for new equity / (1-Flotation cost for new equity) = 0.099 / (1-0.099) = 0.1095 or 10.95%
Similarly, the cost of debt can be calculated as:
Debt Ratio = Debt-equity ratio / (1+Debt-equity ratio) = 0.45 / (1+0.45) = 0.3103
Cost of Debt = Flotation cost for debt / (1-Flotation cost for debt) = 0.043 / (1-0.043) = 0.0448 or 4.48%
The true cost of building the new assembly line can be calculated as:
True Cost = Cost of Equity × Equity Ratio + Cost of Debt × Debt Ratio
= 0.1095 × 0.6897 + 0.0448 × 0.3103
= 0.0755 or 7.55%